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07_Chapter 07 - Click to edit Master subtitle style 7 M...

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Click to edit Master subtitle style Ch 1 7. MANOVA 11
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Ch 1 Decision Process 1. Research Objective 2. Research Design 3. Assumption Test 4. Estimating the MANOVA Model and Assessing Fit 5. Interpretation 6. Validation 22
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Ch 1 1. Research Objective Purpose Do respondents/objects in different categories differ in important characteristics? 33
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Ch 1 2. Research Design Measurement Dependent: metric Independent: non-metric 44
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Ch 1 2. Research Design Effects Main effect of each independent variable on dependent variables Dependent variables: attitude toward stats Independent variable 1: Gender (Male/Female) Do male/female students differ in attitude toward stats? Independent variable 2: State (PA/NJ/Non-US) Do PA/NJ/non-US students differ in attitude toward stats? Joint effect (interaction) of independent variables Gender x State Male PA students Female PA students Male NJ students Female NJ students Male non-US students Female non-US students 55
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Ch 1 2. Research Design Sample Size On average, 30 - 50 observations per category in the independent variables 66
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Ch 1 2. Research Design Division of the Sample Analysis subsample Develop the MANOVA model Holdout subsample Validate the MANOVA model 77
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Ch 1 2. Research Design Data: HBAT 200 Chapters 7 & 8.sav Independent: X1 (Customer Type: 1 = Less than 1 year, 2 = 1 to 5 years, 3 = over 5 years) and X2 (Industry Type: 0 = magazine, 1 = newspaper) Dependent: X19 - X21 Sample size Analysis subsample 3 categories in X1, on average 33 cases per category 2 categories in X2, on average 50 cases per 88
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Ch 1 3. Assumption Test Linearity of the dependent variate Dependent variate Entire set of dependent variables Inter-correlations of the dependent variables in the variate Significance value < .05 99
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Ch 1 10
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Ch 1 11 This will randomly create either a “0” or a “1” in the cell. Move your cursor to the bottom right corner of the cell, and you will see a little “+” sign. Drag it down to create the other 199 random “0”s or “1”s.
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Ch 1 12 200 random “0”s and “1”s have been created. Next click on “ Copy .”
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